Vivo Y400 5G vs Oppo K9x comparison

Show Only Differences Highlight Differences	Vivo Y400 5G	Oppo K9x
key specs
Display	6.67-inch	6.50-inch
Processor	Qualcomm Snapdragon 4 Gen 2	-
Front Camera	32-megapixel	16-megapixel
Rear Camera	50-megapixel + 2-megapixel	64-megapixel + 2-megapixel + 2-megapixel
RAM	8GB	6GB, 8GB
Storage	128GB, 256GB	128GB, 256GB
Battery Capacity	6000mAh	5000mAh
OS	Android 15	Android 11
Resolution	1080x2400 pixels	1080x2400 pixels
general
Brand	Vivo	Oppo
Model	Y400 5G	K9x
Release date	August 4, 2025	December 23, 2021
Launched in India	Yes	No
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	162.29 x 75.31 x 7.90	-
Weight (g)	197.00	-
IP rating	IP69	-
Battery capacity (mAh)	6000	5000
Removable battery	No	-
Fast charging	90W Fast Charging	VOOC
Wireless charging	No	-
Colours	Glam White, Olive Green	Black, Silver Purple
display
Refresh Rate	120 Hz	90 Hz
Resolution Standard	FHD+	-
Screen size (inches)	6.67	6.50
Touchscreen	Yes	Yes
Resolution	1080x2400 pixels	1080x2400 pixels
Pixels per inch (PPI)	394	-
hardware
Processor	octa-core	-
Processor make	Qualcomm Snapdragon 4 Gen 2	MediaTek Dimensity 810
RAM	8GB	6GB, 8GB
Internal storage	128GB, 256GB	128GB, 256GB
camera
Rear camera	50-megapixel + 2-megapixel	64-megapixel + 2-megapixel + 2-megapixel
No. of Rear Cameras	2	3
Rear flash	Yes	-
Front camera	32-megapixel	16-megapixel
No. of Front Cameras	1	1
Pop-Up Camera	-	No
software
Operating system	Android 15	Android 11
Skin	FuntouchOS 15	ColorOS
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes
NFC	No	No
USB OTG	Yes	-
USB Type-C	Yes	-
Headphones	Type-C	-
Number of SIMs	2	-
Active 4G on both SIM cards	Yes	-
sim 1
SIM Type	Nano-SIM	-
sim 2
SIM Type	Nano-SIM	-
sensors
In-Display Fingerprint Sensor	Yes	-
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	-
Fingerprint sensor	-	Yes

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